Coke oven charging mechanism



Aug. 19, 1941. A. HABERLE ETAL COKE OVEN CHARGING MECHANISM Filed May 19, 1939 I point, through the Patented in; 19,1941 1 Albert Hiberle and Fritz Kop'pitz, Essen, Germany, assignors, by mesne assignments, to Koppers Company, Pittsbnrgh,Pa., a corporation of Delaware Application May 19, 1939,8618] NO. 274574 In Germany May 21,4938

4 Claims. 1214-23) The present invention relates to horizontal chamber oven batteries for the production of gas and coke in which the coking cake produced is pushed out of the coking chambers through a lateral chamber opening.

For the discharge of the coking cake from the chamber, a pushing device is used consisting of a spur rack or the like which,

a ram fixed to after removing the chamber doors, travels into the coking chamber on one side so that the coking cake is pushed out provided at the other side of the oven chamber. On that side of the batifiy at which the coke is pushed out, the so-call "coke side, a travelling coke guide car is mostly used which transfers Y the coking cake from the charged into the quenching car. The coke guide car is generally combined with a suitable ,door extracting device by means of which the door on the coke side may be removed and then the coke-guide positioned in place, before the pushing out of the coke'takes place. The pushing machine on the other. side of the battery-the socalled machine in pusher sidemay be fitted with a similar door extracting device.

At coke oven plants operating on a large scale it is difllcult to have the operators of the pushing machine on the machine or pusher side of the batteries and the operators of the coke guide car on the coke side of the batteries serve always one and the same chamber at the same time.

The invention consists control of the position of the coke pushing machine at one side of the battery and of the coke guide car at the other side of thebattery, a ray of light which is led from the pushing machine, or coke guide car, or from any other suitable gas collecting space of the oven after the two chamber doors have been chamber to be dis- 'opened. This light ray is visible, on the one hand. either on the other side of the battery or, after being reflected, also on the same side to the attendants. On the other hand it may effect a photo-electric cell which preferably innuences the drive of the coke pushing machine.

The invention offers the possibility of a most appropriate safeguard as to the proper position of the coke pushing machine and of the coke guide car relative to each other when discharging the oven chamber, as the light ray led through the gas collecting space can only be observed at the other side of the battery or be reflected if both the doors of the .oven chamber are opened. The source of light, or the reflector, is suitably arranged in such a manner that the ray of light through the opening in providing, for the .sible that the light ray of the signal only then machine.

of the known type and is suitably connected with coke guide car in the only falls through the oven chamber if thecoke pushing machine and the coke guide car are in the correct position.

If a photo-electric cell is combined with this protective device, which may also be used for signalling alone, it is possible to control the driving motor of the pushing machine, or to act on its current supply, or on any. locking devices for the coke guide car and for the coke pushing The photo-electric cell may be made an electric ampliflcator in desired mechanisms. Y

A turtherobject of the present invention is to provide such improvements which will ensure that the coke guide car is in proper position in front of the coke oven door when the respective coking chambers are to be discharged and to prevent any discharging as long as the coke guide car is not in its correct position.

In this connection the invention provides means in which, by switching on the source of light from wherethe ray leads through the gas collecting space of the coking chamber to be discharged, another circuit is closed which connects order to disengage the a switch provided for the purpose on the quenching car with a signal, preferably an acoustic signal device arranged on the pusher machine side, or at any other suitable place of the battery.

Furthermore the invention provides for the connection of the contrivan'ce for interlocking the of the coking chamber to be discharged with a contact device which ply to the source of light. In this way it is poslights up if the coke guide car stands exactly 7 in front of the chamber to be discharged in its proper position.

with the above and other objects and features of the present invention in view, we will now describe a preferred embodiment thereof on the lines of the accompanying drawing showing schematically a cross-section of a coke plant modified according to the invention. Y

Iihe horizontal chamber oven battery is marked I on the drawing and the section through the oven chamber is made in such a way that one 2 and a gas colcoal charge in the The coking cake coking chamber 2 b b a pushing machine 0 is provided which travels over the tracks I along the right hand side or the battery (on the draw.

lecting space 3 overlying the top of the coking chamber.

- azszsoz controls the current sup- The bottom, between the ing). The pushing machine v4 is provided with a ram 6 and a pusher head 'I the shape of which substantially corresponds to the front side of the eating cake to be discharged.

. n the other side of the battery is arranged a platform 8 on which the coke guide car travels. The coke guide car is preferably equipped, with two vertical walls which guide the cake from the chamber 2 over the platform 8. guiding walls of the coke guide car 9, is inclinedtowards the outer end, as indicated at it, so that at. this point the seized coke breaks oif and falls upon the loading face ll of the quenching car I2.

At the .top of the coke guide car 9, preferably beyond that-point at which the caked coke breaks off, due to the inclination of the bottom, there is arranged a pipe-like part 28 open at one side in which a source of I electric bulb, is situated. The part 28 opens towards the gas collecting space 3 of the oven chamber. The part 28 is preferably formed by a refractory or goodinsulating material, or it is at least lined with such a material. in order to protect the light source It from the heat of radiation of the oven chamber and of the glowing coke.

The part 28 is arranged in such away relative to the top of the oven chamber that if the coke guide car 9 stands directly in front of the chamber to be discharged, the front opening of the part 28 lies in the direction of the gas collecting space 8 and in line therewith. If the light source It lights up, as-indicated by the dashed line it, a ray is conducted through the gas collecting space 3 which may be seen for instance by the operator on the pushing machine 6 as marked at it.

The supply of currentto the source of light it is controlledby a switch It which is operated by a hand lever ii. The hand lever I! further actuates a lock 18 which engages into a recess of one of the buckstays of the oven battery if the coke guide car is in its proper position exactly in front of the open doorway of the oven chamber to be discharged. The lever II can therefore only be brought into the position shown on the drawing which lights the light i3 if the look It may also be introduced into its. recess. This, means that the circuit for the signal light it can only be closed if the coke guide car is in its proper position. If the hand lever I1 is shifted to the left, the contact I6 is interrupted as indicated in dotted line at 20.

light I3, for example an -machine for receiving coke quenching car have taken up infront of the oven chamber car and the the proper position to be discharged.

We have now above described our present invention on the lines of a preferred embodiment thereof but our invention is not limited in all its aspects to the mode of carrying it out as described and shown. since the invention may be variously embodied within the scope of the following claims.

what we claim is: 1. Apparatus for aligning a oolt'e guide car and coke pushing machine at opened doorways at opposite ends of a horizontal coke oven comprising: electrical means on the coke-guide car for emitting a light-ray; means on the coke pushing the light-ray from the coke-guide car; and'in which the light-ray emitting element is disposed on the coke-guide car a so that the ray is led. in place at one end of coke therefrom, into the open doorway'of the when the coke-guide is chamber from the coke-guide car through the 7 gas collecting space below the top of the chamber above the charge therein, and emerges through the open doorway at the pusher side; and in which the means for receiving the light-ray comprises a photo-electric cell on the coke pushing machine disposed thereon in position to receive the ray only when the coke-guide and the pusher machine are both in proper cooperative position at opposite ends of the same oven chamber.

2. Apparatus structure and coke pusher-ram machine structure at opened doorways at opposite ends of a horizontal coke oven comprising: electrical By closing the contact It the circuit 2! is also closed which acts upon an electric magnet 22. The contact lever 23 is thereby attracted so that the circuit 24 is closed. This circuit 25 transfers over the usual trolley wires onto the driver's cabin" of the cabin there is provided a hand switch 26 which is operated by the mechanic on the quenching car assoon as the quenching car stands in front of the oven chamber to be discharged. 'If the quenching car operator engages the switch 26 and if the coke guide car-9 has reached its proper position by pushing in passes across the line 24 to an acoustic signal 21 or to another suitable signal device which indicates to the operator on the pushing machine that the pushing of, the coke from the oven chamber can now be commenced. Instead of using the optic or acoustic device 21 it is also .possible to provide an electrical contrivance as shown which acts upon the drive of. the ram 8 so quenching car l2. At the driver's the lock la, the currentmeans for emitting a light-ray on one of said structures; and means on the other structure for receiving the ray; and in which the light-ray emitting element is disposed on the structure so that the ray is led, when its structure is in operative position at oneend of a chamber, into the open doorway of the chamber through the gas collecting space below the top of the chamber and above the charge therein, and emerges through the open doorway at the opposite end of the chamber; and in which the means for receiving the light-ray comprises a photo-electric cell on the other structure disposed thereon in position to receive the ray only when said cokeguide structure and said pusher-ram structure are both in proper cooperative position at opposite ends of the same oven chamber, and means operable by the photo-electric cell for controlling the flow of electric power for driving the ram of the pusher-ram machine so that the ram is driven only when the light-ray is received by the photo-electric cell.

3. Apparatus for aligning a coke pushing machine on one side with a coke-guide car and cokequenching car on the opposite side of a horizontal coke oven, comprising: electrical means for emitting a light-ray on the coke-guide car; and

means on the coke pushing machine for receiving the light-ray from the coke-guide car; and in which the light-ray emitting element is arranged to cause a light-ray to traverse the crown-space of the oven chamber, and which the receiving. means-is disposed on the pushing machine to receive the ray as it emerges at the opposite end of the chamber, said electrical means for emitting light-rays including connections operable on closing of the light circuit to close a circuit having a switch on the cokea chamber to guide thefor aligning a coke-guide car quenching car, said circuit being connected with means for the pusher machine on the pusher machine side of the battery and being operable only when the switch on the coke-quenching car and the light-ray circuit are both closed.

4. Apparatus for aligning a pusher machine and a coke-guide machine at opened doorways at opposite ends of a horizontal coke oven, comprising: a pusher machine on the pusherside of the oven and a coke-guide machine on the coke-side, light-ray sending means on one of said machines arranged to cause a light-ray to traverse the crown-space of the oven, and photoelectric cell means on the other machine arranged to receive said light-ray and to be actuated by the light-ray, said light-ray sending means and said photo-electric cell means being mounted on their respective machines so that t the photo-electric cell means receives the ray from the sending means omy when the pusher machine and coke guide machine are in correct 10 position at opposite ends of the oven.

ALBERT mrrz xorrrrz. 

